GM Service Manual Online
For 1990-2009 cars only

Generator Replacement L61

Removal Procedure

    Caution: Refer to Battery Disconnect Caution in the Preface section.


    Object Number: 897265  Size: SH

    Important: Record all pre-set radio stations.

  1. Disconnect the negative battery cable.
  2. Remove the throttle body air duct.
  3. Remove the accessory drive belt.
  4. Disconnect the positive battery cable connection at the generator.
  5. Remove the generator to engine block bolts.

Installation Procedure


    Object Number: 895890  Size: SH
  1. Position the generator and install the top bolts finger tight.
  2. Install the bottom bolts and tighten all generator bolts.
  3. Tighten
    Tighten the generator to engine bolts to 20 N·m (15 lb ft).

  4. Connect the positive battery cable connection at the generator.
  5. Tighten
    Tighten the positive battery cable to generator nut to 16 N·m (12 lb ft).

  6. Install the accessory drive belt.
  7. Install the throttle body air duct.
  8. Connect the negative battery cable.
  9. Tighten
    Tighten the battery terminal bolts to 17 N·m (13 lb ft).

  10. Reprogram the radio stations.

Generator Replacement L81

Removal Procedure

    Caution: Refer to Battery Disconnect Caution in the Preface section.


    Object Number: 894336  Size: SH

    Important: Record all pre-set radio stations.

  1. Disconnect the negative battery cable.
  2. Remove the accessory drive belt.
  3. Important: The exhaust system remains hot for extended periods of time.

  4. Remove the 2 belt tensioner to engine block bolts and the tensioner.
  5. Remove the upper generator to engine to block bolts.
  6. Caution: Refer to Vehicle Lifting Caution in the Preface section.

  7. Raise the vehicle on a hoist.
  8. Turn the steering wheel into a right turn for access to the lower generator bolt.
  9. Remove the lower generator bolt.
  10. Lower the vehicle.
  11. Separate the generator from the engine block.
  12. Disconnect the 2 generator electrical connectors and remove the generator.

Installation Procedure

    Notice: Refer to Fastener Notice in the Preface section.

  1. Lower the generator into the engine compartment and connect the generator electrical connections.
  2. Tighten
    Tighten the B+ cable to generator nut to 16 N·m (12 lb ft).

  3. Guide the generator into the engine block with the upper mounting bolt positioned in the generator mounting hole.
  4. Position the generator and install the upper mounting bolts and finger tighten.
  5. Raise the vehicle on a hoist. Refer to Lifting and Jacking the Vehicle in General Information.
  6. Install the lower generator mounting bolts.
  7. Lower the vehicle.
  8. Tighten the upper generator mounting bolts.
  9. Tighten
    Tighten the generator mounting bolts to 40 N·m (30 lb ft).

  10. Install the belt tensioner to the engine block.
  11. Tighten
    Tighten the belt tensioner bolts to 40 N·m (30 lb ft).

  12. Install the accessory drive belt.
  13. Connect the negative battery cable.
  14. Tighten
    Tighten the battery terminal bolts to 17 N·m (13 lb ft).

  15. Reprogram the radio stations.